One notable property of these materials can be described by Miezowicz geometries and store
 Frank-Oseen energy. They can suffer from radial hedgehog defects. A change in their orientation by an
 electric field occurs at the Fredericks transistion. The direction of the averaged orientation in these are
 characterized by directors. Lipid membranes in cells are believed to have the dynamics of these. Two
 classes of these are thermotropics and lyotropics. Their phases include columnar, smectic, and nematic.
 These have orientational, but not long range order. For 10 points, name these fluid materials with
 intermediate organizational properties that are used in TV and computer displays.
One notable property of these materials can be described by Miezowicz geometries and store
 Frank-Oseen energy. They can suffer from radial hedgehog defects. A change in their orientation by an
 electric field occurs at the Fredericks transistion. The direction of the averaged orientation in these are
 characterized by directors. Lipid membranes in cells are believed to have the dynamics of these. Two
 classes of these are thermotropics and lyotropics. Their phases include columnar, smectic, and nematic.
 These have orientational, but not long range order. For 10 points, name these fluid materials with
 intermediate organizational properties that are used in TV and computer displays.
One notable property of these materials can be described by Miezowicz geometries and store
 Frank-Oseen energy.
{liquid crystals} [prompt on {nematic material} before lipid membranes]